1. Introduction
Just 24 hours ago, a major storm system swept across the Midwest, damaging thousands of homes—many of which had outdated vinyl or wood siding. In response, contractors and architects are increasingly recommending metal clad siding for its durability and weather resistance. If you’re considering upgrading your home’s exterior with metal clad materials, you’re not alone. Metal clad houses are surging in popularity thanks to their sleek aesthetics, low maintenance, and resilience against fire, pests, and extreme weather.
Whether you’re drawn to the rustic charm of corten steel siding, the modern look of a zinc facade, or the affordability of exterior corrugated metal siding, this guide will show you exactly how to install and maintain your metal clad wall system properly.
2. Choosing the Right Metal Clad Material
Not all clad metals are created equal. Your choice depends on climate, budget, and design goals. Here are popular options:
- Corten steel siding: Develops a protective rust patina; ideal for modern or industrial designs. Note that corten siding cost can be higher upfront but offers long-term savings.
- Aluminum clad steel: Lightweight, corrosion-resistant, and often used in vertical standing seam metal siding.
- Zinc metal siding: Self-healing surface with a soft gray finish; commonly seen in zinc clad dormers or roofs.
- Copper siding: Ages beautifully to a green patina; best for accent walls or high-end projects.
- Colorbond standing seam or PAC CLAD standing seam roof panels: Pre-painted, durable, and available in dozens of colors.
Also consider clad metal meaning—these are composite materials where a base metal (like steel) is bonded with a corrosion-resistant layer (like aluminum or zinc). Examples include aluminum clad stainless steel and stainless clad aluminum.
3. Preparing for Installation
Before you begin, gather the right tools: metal snips, drill with metal bits, chalk line, tape measure, safety goggles, and gloves. Ensure your wall substrate is flat, dry, and structurally sound. If you’re replacing old siding, remove it completely and inspect for moisture damage or rot.
Check local building codes—some areas require specific fastener types or insulation behind metal clad walls. For sheds or small structures, a metal clad shed can often be installed directly over plywood sheathing with a vapor barrier.
4. Step-by-Step Installation Guide
Follow these steps for a professional-looking metal clad wall:
- Step 1: Install a weather-resistant barrier (like housewrap) over the sheathing to prevent moisture intrusion.
- Step 2: Snap vertical chalk lines to guide panel alignment—critical for vertical standing seam metal siding.
- Step 3: Start at a corner or edge. Secure the first panel with corrosion-resistant fasteners (stainless steel or coated) into the framing—not just the sheathing.
- Step 4: Overlap panels according to manufacturer specs. For corrugated steel facade systems, overlaps are typically one full ridge.
- Step 5: Use PAC CLAD coping or column covers for clean transitions around windows, doors, and corners.
- Step 6: Seal all penetrations (vents, outlets) with compatible metal flashing or sealant rated for exterior metal use.
Pro tip: Never overtighten fasteners—this can deform panels or restrict thermal expansion, leading to buckling.
5. Common Problems and How to Fix Them
Even the best metal clad systems can face issues if improperly installed or maintained:
- Rust spots on steel plate surfaces: Usually due to scratches exposing bare metal. Touch up with matching paint or rust-inhibiting primer.
- Oil canning (wavy distortion): Caused by uneven substrate or over-tightened fasteners. Prevent it with proper panel support spacing.
- Noise during rain: Add insulation behind the metal clad wall or choose thicker gauge material (e.g., 22-gauge vs. 29-gauge).
- Fading or chalking: Use high-quality coatings like those on PAC CLAD HWP (High-Weather Performance) panels.
For electrical work, note that metal clad electrical wire (like aluminum clad steel wire or CU clad wire) is permitted in commercial buildings in Pennsylvania—but always verify with local codes and use proper connectors when running it through exterior walls.
6. Maintenance Tips for Longevity
Metal clad siding is low-maintenance but not zero-maintenance. Follow these tips:
- Rinse annually with a garden hose to remove dust, pollen, and salt (especially near coasts).
- Inspect fasteners and seals every 2–3 years; replace any that are loose or corroded.
- Avoid abrasive cleaners—use mild soap and water for stains.
- For corten steel siding, allow the natural patina to form; don’t paint or seal it unless specified by the manufacturer.
Remember, materials like zinc clad roof or copper siding develop character over time—their beauty is in the aging process.
7. Conclusion
Installing metal clad siding is a smart investment that boosts curb appeal, durability, and energy efficiency. Whether you choose a steel clad house with a standing seam facade or a modern corten steel plate accent wall, proper installation and basic upkeep ensure decades of performance. With options ranging from affordable corrugated steel to premium titanium clad panels, there’s a metal clad solution for every home and budget.
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